You can configure the standard C++ library in two ways to reduce the code size
and dependencies on external libraries:
1. --enable-cxx-flags=-fno-exceptions
This does currently not work, due to an error in guard.cc which defines
recursive_init_error::~recursive_init_error() and this results in a dependency
on pure.cc and this one pulls in the IO library.
2. --disable-hosted-libstdcxx
This is also broken currently (try to build it).
Embedded targets may provide a hosted C environment, but in some cases it is
useless to provide output messages. Also the IO library is quite huge. Two
files in libstdc++/libsupc++ pull in the IO library: pure.cc and
eh_term_handler.cc (via vterminate.cc). It would be nice to have a configure
option (like --enable-verbose-cxx) to enable or disable the output generation
in these files.
--
Summary: Embedded systems friendly libstdc++
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: sebastian dot huber at embedded-brains dot de
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43852
